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Siemens make a 2-pole gfci shunt trip; Google is your friend. If you have a lot of electrical for a renovation or new install, put the required circuits in a sub panel and feed it with a shunt trip breaker. Your branch circuits can be GFCI. If you have only one or two circuits, use a contactor.
That said, what is actuating the shunt trip? You need a contact closure somewhere to provide usually 120v to the shunt trip connection of the breaker. In most cases the shunt trip has a cutoff switch which immediately disconnects the 120v power from the shunt trip after the shunt trip is energized and breaker opens. The remote contact really ...
i think i have it figured out. further investigation has revealed my ignorance. the device is not a shunt trip breaker, it is an ASCO remote controlled switch. the white wire is a neutral (or common), the black wire is for n/c contacts, and the red wire is for n/o contacts. also, the panel has a split bus so the when the switch opens there will ...
not to shunt trip the breakers feeding the elevator. The shunt trip process is controlled by the Smoke and Heat detectors installed in the elevator shaft itself tied to the shunt trip breakers, not from the auxiliary contacts in the elevator service disconnect. Someone more knowledgeable about such will probably chime in. JAP>
I have a question about shunt trip breakers. In post #3, the first breaker pictured says, "Internal contacts open coil circuit when circuit breaker or interrupter is in any open position". Is this true of all or even most shunt trip breakers? In the directions for installing a trip coil in an I-line breaker, I did not see any labels like the ...
3) if there are "HEAT PRODUCING" electical items under the hood I disconnect those with a shunt trip breaker activated via the ANSUL system. Like an electric fryer, electric grill, etc. 4) I do NOT disconnect general purpose receptacles that supply refrigeration power, timer power, or other non-heat generating electrical items that are under ...
With a shunt trip circuit, three things must happen to trip the breaker. 1) fault detection circuit works, 2) shunt trip power source works, then 3) shunt trip coil works. We've switched over to Undervoltage Release mechanisms because of problems with #2. The UV coil trips the breaker when power is lost. So now you're down to two things.
A 3 phase 208 200 amp shunt trip breaker being used as a main service disconnect, best location to get the 120 volts to engage shunt?
Without power to these remote devices, the shunt trip devices would fail to operate. Always verify that power is turned off before working on the electrical equipment and make sure the power has been locked off. It must be shown the shunt trip is listed as a “service disconnecting device” as required by 230.66. I would be surprised if it is.
A SHUNT TRIP is a coil when energized moves an actuator into the trip device on the circuit breaker resulting in a trip/opening the CB. Unit is de-energized and powered on to trip. An undervoltage release is energized with the CB closed and upon loss of power to the undervoltage an actuator moves into the trip device on the circuit breaker ...